<template>
	<view>
		<view class="goods-list">
			<block v-for="(item,i) in goodsList" :key="i">
				<my-goods :item="item" @click="gotoDetail(item)"></my-goods>
			</block>
		</view>
	</view>
</template>

<script>
	import MyGoods from "../../components/my-goods.vue"
	
	export default {
		data() {
			return {
				// 请求参数对象
				queryObj: {
				    // 查询关键词
				    query: '',
				    // 商品分类Id
				    cid: '',
				    // 页码值
				    pagenum: 1,
				    // 每页显示多少条数据
				    pagesize: 10
				},
				goodsList:[],
				total:0,
				isloading:false
			};
		},
		onLoad(options) {
		  // 将页面参数转存到 this.queryObj 对象中
		  this.queryObj.query = options.query || ''
		  this.queryObj.cid = options.cid || ''
		  
		  this.getGoodsList()
		},
		components:{MyGoods},
		methods:{
			async getGoodsList(cb){
				this.isloading=true
				const {data:res}=await uni.$http.get('/api/public/v1/goods/search',this.queryObj)
				this.isloading=false
				cb&&cb()
				if(res.meta.status!==200) return uni.$showMsg()
				
				// 为数据赋值：通过展开运算符的形式，进行新旧数据的拼接
				this.goodsList=[...this.goodsList,...res.message.goods]
				this.total=res.message.total
				
			},
			gotoDetail(item){
				uni.navigateTo({
					url:'../goods_detail/goods_detail?goods_id'+item.goods_id
				})
			}
		},
		onReachBottom(){
			if(this.queryObj.pagesize*this.queryObj.pagenum>=this.total) 
				return uni.$showMsg('数据加载完毕！')
			
			if(this.isloading) return 
			// 让页码值自增 +1
			  this.queryObj.pagenum += 1
			  // 重新获取列表数据
			  this.getGoodsList()
		},
		onPullDownRefresh(){
			// 1. 重置关键数据
			  this.queryObj.pagenum = 1
			  this.total = 0
			  this.isloading = false
			  this.goodsList = []
			
			  // 2. 重新发起请求
			  this.getGoodsList(() => uni.stopPullDownRefresh())
		}
	}
</script>

<style lang="scss">

</style>
